Quantitative Magnetic Resonance Imaging

Quantitative Magnetic Resonance Imaging
Author: Nicole Seiberlich,Vikas Gulani,Adrienne Campbell-Washburn,Steven Sourbron,Mariya Ivanova Doneva,Fernando Calamante,Houchun Harry Hu
Publsiher: Academic Press
Total Pages: 1092
Release: 2020-11-27
ISBN 10: 0128170581
ISBN 13: 9780128170588
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Imaging Book Review:

Quantitative Magnetic Resonance Imaging is a ‘go-to’ reference for methods and applications of quantitative magnetic resonance imaging, with specific sections on Relaxometry, Perfusion, and Diffusion. Each section will start with an explanation of the basic techniques for mapping the tissue property in question, including a description of the challenges that arise when using these basic approaches. For properties which can be measured in multiple ways, each of these basic methods will be described in separate chapters. Following the basics, a chapter in each section presents more advanced and recently proposed techniques for quantitative tissue property mapping, with a concluding chapter on clinical applications. The reader will learn: The basic physics behind tissue property mapping How to implement basic pulse sequences for the quantitative measurement of tissue properties The strengths and limitations to the basic and more rapid methods for mapping the magnetic relaxation properties T1, T2, and T2* The pros and cons for different approaches to mapping perfusion The methods of Diffusion-weighted imaging and how this approach can be used to generate diffusion tensor maps and more complex representations of diffusion How flow, magneto-electric tissue property, fat fraction, exchange, elastography, and temperature mapping are performed How fast imaging approaches including parallel imaging, compressed sensing, and Magnetic Resonance Fingerprinting can be used to accelerate or improve tissue property mapping schemes How tissue property mapping is used clinically in different organs Structured to cater for MRI researchers and graduate students with a wide variety of backgrounds Explains basic methods for quantitatively measuring tissue properties with MRI - including T1, T2, perfusion, diffusion, fat and iron fraction, elastography, flow, susceptibility - enabling the implementation of pulse sequences to perform measurements Shows the limitations of the techniques and explains the challenges to the clinical adoption of these traditional methods, presenting the latest research in rapid quantitative imaging which has the possibility to tackle these challenges Each section contains a chapter explaining the basics of novel ideas for quantitative mapping, such as compressed sensing and Magnetic Resonance Fingerprinting-based approaches

Fast Quantitative Magnetic Resonance Imaging

Fast Quantitative Magnetic Resonance Imaging
Author: Guido Buonincontri,Martin Graves,Joshua Kaggie
Publsiher: Unknown
Total Pages: 124
Release: 2020-02-20
ISBN 10: 9781681736969
ISBN 13: 1681736969
Language: EN, FR, DE, ES & NL

Fast Quantitative Magnetic Resonance Imaging Book Review:

Among medical imaging modalities, magnetic resonance imaging (MRI) stands out for its excellent soft-tissue contrast, anatomical detail, and high sensitivity for disease detection. However, as proven by the continuous and vast effort to develop new MRI techniques, limitations and open challenges remain. The primary source of contrast in MRI images are the various relaxation parameters associated with the nuclear magnetic resonance (NMR) phenomena upon which MRI is based. Although it is possible to quantify these relaxation parameters (qMRI) they are rarely used in the clinic, and radiological interpretation of images is primarily based upon images that are relaxation time weighted. The clinical adoption of qMRI is mainly limited by the long acquisition times required to quantify each relaxation parameter as well as questions around their accuracy and reliability. More specifically, the main limitations of qMRI methods have been the difficulty in dealing with the high inter-parameter correlations and a high sensitivity to MRI system imperfections. Recently, new methods for rapid qMRI have been proposed. The multi-parametric models at the heart of these techniques have the main advantage of accounting for the correlations between the parameters of interest as well as system imperfections. This holistic view on the MR signal makes it possible to regress many individual parameters at once, potentially with a higher accuracy. Novel, accurate techniques promise a fast estimation of relevant MRI quantities, including but not limited to longitudinal (T1) and transverse (T2) relaxation times. Among these emerging methods, MR Fingerprinting (MRF), synthetic MR (syMRI or MAGIC), and T1‒T2 Shuffling are making their way into the clinical world at a very fast pace. However, the main underlying assumptions and algorithms used are sometimes different from those found in the conventional MRI literature, and can be elusive at times. In this book, we take the opportunity to study and describe the main assumptions, theoretical background, and methods that are the basis of these emerging techniques. Quantitative transient state imaging provides an incredible, transformative opportunity for MRI. There is huge potential to further extend the physics, in conjunction with the underlying physiology, toward a better theoretical description of the underlying models, their application, and evaluation to improve the assessment of disease and treatment efficacy.

Theory of Quantitative Magnetic Resonance Imaging

Theory of Quantitative Magnetic Resonance Imaging
Author: Hernán Jara
Publsiher: World Scientific Publishing Company
Total Pages: 264
Release: 2013-04-04
ISBN 10: 9814518387
ISBN 13: 9789814518383
Language: EN, FR, DE, ES & NL

Theory of Quantitative Magnetic Resonance Imaging Book Review:

qMRI is a rapidly evolving scientific field of high current interest because it has the potential of radically changing the clinical and research practices of magnetic resonance imaging (MRI). This focuses solely on the theoretical aspects of qMRI, which are treated and analyzed at three different spatial scales, specifically: i) the quantum physics scale of individual spins; ii) the semi-classical physics scale of spin packets; and iii) the imaging scale of voxels. Topics are presented paying particular attention to theoretical unification and mathematical uniformity.

Quantitative MRI of the Spinal Cord

Quantitative MRI of the Spinal Cord
Author: Julien Cohen-Adad,Claudia Wheeler-Kingshott
Publsiher: Academic Press
Total Pages: 330
Release: 2014-01-16
ISBN 10: 0123972825
ISBN 13: 9780123972828
Language: EN, FR, DE, ES & NL

Quantitative MRI of the Spinal Cord Book Review:

Quantitative MRI of the Spinal Cord is the first book focused on quantitative MRI techniques with specific application to the human spinal cord. This work includes coverage of diffusion-weighted imaging, magnetization transfer imaging, relaxometry, functional MRI, and spectroscopy. Although these methods have been successfully used in the brain for the past 20 years, their application in the spinal cord remains problematic due to important acquisition challenges (such as small cross-sectional size, motion, and susceptibility artifacts). To date, there is no consensus on how to apply these techniques; this book reviews and synthesizes state-of-the-art methods so users can successfully apply them to the spinal cord. Quantitative MRI of the Spinal Cord introduces the theory behind each quantitative technique, reviews each theory’s applications in the human spinal cord and describes its pros and cons, and suggests a simple protocol for applying each quantitative technique to the spinal cord. Chapters authored by international experts in the field of MRI of the spinal cord Contains “cooking recipes —examples of imaging parameters for each quantitative technique—designed to aid researchers and clinicians in using them in practice Ideal for clinical settings

Quantitative Magnetic Resonance Imaging of the Brain in Survivors of Very Low Birth Weight

Quantitative Magnetic Resonance Imaging of the Brain in Survivors of Very Low Birth Weight
Author: Laurence James Abernethy
Publsiher: Unknown
Total Pages: 329
Release: 2004
ISBN 10:
ISBN 13: OCLC:1076617290
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Imaging of the Brain in Survivors of Very Low Birth Weight Book Review:

XIV Mediterranean Conference on Medical and Biological Engineering and Computing 2016

XIV Mediterranean Conference on Medical and Biological Engineering and Computing 2016
Author: Efthyvoulos Kyriacou,Stelios Christofides,Constantinos S. Pattichis
Publsiher: Springer
Total Pages: 1367
Release: 2016-03-31
ISBN 10: 3319327038
ISBN 13: 9783319327037
Language: EN, FR, DE, ES & NL

XIV Mediterranean Conference on Medical and Biological Engineering and Computing 2016 Book Review:

This volume presents the proceedings of Medicon 2016, held in Paphos, Cyprus. Medicon 2016 is the XIV in the series of regional meetings of the International Federation of Medical and Biological Engineering (IFMBE) in the Mediterranean. The goal of Medicon 2016 is to provide updated information on the state of the art on Medical and Biological Engineering and Computing under the main theme “Systems Medicine for the Delivery of Better Healthcare Services”. Medical and Biological Engineering and Computing cover complementary disciplines that hold great promise for the advancement of research and development in complex medical and biological systems. Research and development in these areas are impacting the science and technology by advancing fundamental concepts in translational medicine, by helping us understand human physiology and function at multiple levels, by improving tools and techniques for the detection, prevention and treatment of disease. Medicon 2016 provides a common platform for the cross fertilization of ideas, and to help shape knowledge and scientific achievements by bridging complementary disciplines into an interactive and attractive forum under the special theme of the conference that is Systems Medicine for the Delivery of Better Healthcare Services. The programme consists of some 290 invited and submitted papers on new developments around the Conference theme, presented in 3 plenary sessions, 29 parallel scientific sessions and 12 special sessions.

Quantitative Magnetic Resonance Imaging with Magnetic Nanoparticles

Quantitative Magnetic Resonance Imaging with Magnetic Nanoparticles
Author: Codi Amir Gharagouzloo
Publsiher: Unknown
Total Pages: 85
Release: 2016
ISBN 10:
ISBN 13: OCLC:961274258
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Imaging with Magnetic Nanoparticles Book Review:

The ability to measure structural and functional features of health and disease is limited by our current clinical imaging toolbox. For angiography, approximately 1-5 million people in the U.S. are not candidates for contrast-enhanced magnetic resonance angiography (CE-MRA) because of renal malfunction. For cancer, it is difficult to predict the extent the enhanced permeability and retention (EPR) effect will be present leading to drug accumulation in tumors. Ferumoxytol has previously been used as a surrogate to assess nanoparticle accumulation, but negative contrast suffers from poor discrimination of nanoparticle localization. For neuroimaging, MRI is a powerful technique for probing the deep brain but can only provide semi-quantitative information. Cerebral blood volume (CBV) is an important indicator of tissue health and function, however current techniques are 15-30% inaccurate, and only the relative CBV is typically measured to assess function. Currently, only nuclear medicine provides an effective means of absolute quantification of contrast agent induced signal. However, the radioisotopes involved in these procedures are hazardous, and thus the use of nuclear medicine is not warranted for repeat structural and functional imaging. Here we demonstrate a novel technique that can produce CE-MRAs using magnetic nanoparticles including the FDA approved super paramagnetic iron-oxide nanoparticle (SPION) ferumoxytol with very high Contrast to Noise Ratio (CNR) in cardiovascular, cerebral, and tumor imaging in mice and rats. First, the technique is established and shown to measure clinically relevant concentrations of ferumoxytol with high fidelity range in mice. Next, a unique feature of the methodology to produce high-contrast images of purely T1-weighted signal is employed to unambiguously delineate nanoparticle accumulation in a PC3 subcutaneous tumor model with ferumoxytol accumulation 24 hours after just one dose. From this, contrast efficiency was produced compared to standard techniques with the additional benefit that pre-contrast images are not necessitated. Finally, we show unprecedented accuracy in measuring the CBV in absolute terms throughout the whole rat brain. We create a quantitative blood volume atlas and demonstrate that absolute functional measurements of CBV can be assessed by comparing the awake, CO2-challenged and anesthetized states. The method is anchored in theory and is compatible with existing clinical SPION formulations and scanners. Thus QUTE-CE shows high potential for quantitative imaging immediately applicable to human scans.

Three dimensional Quantitative Magnetic Resonance Imaging of Carotid Atherosclerotic Plaque

Three dimensional Quantitative Magnetic Resonance Imaging of Carotid Atherosclerotic Plaque
Author: Jianmin Yuan
Publsiher: Unknown
Total Pages: 329
Release: 2017
ISBN 10:
ISBN 13: OCLC:1064605626
Language: EN, FR, DE, ES & NL

Three dimensional Quantitative Magnetic Resonance Imaging of Carotid Atherosclerotic Plaque Book Review:

Quantitative MRI of the Brain

Quantitative MRI of the Brain
Author: Mara Cercignani,Nicholas G. Dowell,Paul S. Tofts
Publsiher: CRC Press
Total Pages: 342
Release: 2018-01-12
ISBN 10: 1315363569
ISBN 13: 9781315363561
Language: EN, FR, DE, ES & NL

Quantitative MRI of the Brain Book Review:

Building on the success of the first edition of this book, the winner of the 2004 British Medical Association Radiology Medical Book Competition, Quantitative MRI of the Brain: Principles of Physical Measurement gives a unique view on how to use an MRI machine in a new way. Used as a scientific instrument it can make measurements of a myriad of physical and biological quantities in the human brain and body. For each small tissue voxel, non-invasive information monitors how tissue changes with disease and responds to treatment. The book opens with a detailed exposition of the principles of good practice in quantification, including fundamental concepts, quality assurance, MR data collection and analysis and improved study statistical power through minimised instrumental variation. There follow chapters on 14 specific groups of quantities: proton density, T1, T2, T2*, diffusion, advanced diffusion, magnetisation transfer, CEST, 1H and multi-nuclear spectroscopy, DCE-MRI, quantitative fMRI, arterial spin-labelling and image analysis, and finally a chapter on the future of quantification. The physical principles behind each quantity are stated, followed by its biological significance. Practical techniques for measurement are given, along with pitfalls and examples of clinical applications. This second edition of this indispensable 'how to' manual of quantitative MR shows the MRI physicist and research clinician how to implement these techniques on an MRI scanner to understand more about the biological processes in the patient and physiological changes in healthy controls. Although focussed on the brain, most techniques are applicable to characterising tissue in the whole body. This book is essential reading for anyone who wants to use the gamut of modern quantitative MRI methods to measure the effects of disease, its progression, and its response to treatment. Features: The first edition was awarded the book prize for Radiology by the British Medical Association in 2004 Written by an authority in the field: Professor Tofts has an international reputation for quantification in MRI Gives specific ‘how to’ information for implementation of MRI measurement sequence techniques

Quantitative MRI of the Brain

Quantitative MRI of the Brain
Author: Paul Tofts
Publsiher: John Wiley & Sons
Total Pages: 650
Release: 2005-08-19
ISBN 10: 0470869496
ISBN 13: 9780470869499
Language: EN, FR, DE, ES & NL

Quantitative MRI of the Brain Book Review:

2004 BMA Medical Book Competition Winner (Radiology category) “This is an exciting book, with a new approach to use of the MRI scanner. It bridges the gap between clinical research and general neuro-radiological practice. It is accessible to the clinical radiologist, and yet thorough in its treatment of the underlying physics and of the science of measurement. It is likely to become a classic.” British Medical Association This indispensable 'how to' manual of quantitative MR is essential for anyone who wants to use the gamut of modern quantitative methods to measure the effects of neurological disease, its progression, and its response to treatment. It contains both the methodology and clinical applications, reflecting the increasing interest in quantitative MR in studying disease and its progression. The editor is an MR scientist with an international reputation for high quality research The contributions are written jointly by MR physicists and MR clinicians, producing a practical book for both the research and medical communities A practical book for both the research and medical communities “Paul Tofts has succeeded brilliantly in capturing the essence of what needs to become the future of radiology in particular, and medicine in general – quantitative measurements of disease.” Robert I. Grossman, M.D. New York, University School of Medicine (from the Foreword)

Quantitative Magnetic Resonance Imaging Biomarkers for Diffuse Liver Disease Technical Development and Validation

Quantitative Magnetic Resonance Imaging Biomarkers for Diffuse Liver Disease  Technical Development and Validation
Author: Xiaoke Wang
Publsiher: Unknown
Total Pages: 136
Release: 2019
ISBN 10:
ISBN 13: OCLC:1128096259
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Imaging Biomarkers for Diffuse Liver Disease Technical Development and Validation Book Review:

Non-alcoholic fatty liver disease (NAFLD) is a common liver disorder hallmarked by abnormal deposition of fat, i.e.: hepatic steatosis. NAFLD can take the form of non-alcoholic steatohepatitis (NASH) or isolated steatosis. Both forms of NAFLD can cause chronic liver injuries which leads to the progression into liver fibrosis. At the same time, NAFLD is a known risk factor of type-II diabetes and premature cardiovascular diseases. Although liver fibrosis is less common than NAFLD, it has serious complications such as liver failure. Cirrhosis as a form of advanced fibrosis is a risk factor of hepatocellular carcinoma. Effective treatments are emerging for NAFLD and liver fibrosis. Lifestyle intervention has been demonstrated to reduce hepatic steatosis and inflammation. In the case of viral hepatitis, treatment for hepatitis C virus infection often leads to the reversal of liver fibrosis (even in patients with cirrhosis). The accurate evaluation of hepatic steatosis and fibrosis using non-invasive magnetic resonance imaging (MRI) methods are needed to improve the diagnosis and treatment monitoring of patients afflicted by these conditions. Chemical shift encoded (CSE)-MRI has been established as a quantitative imaging biomarker (QIB) for hepatic steatosis. In this dissertation, the effect of non-standardized spectral model of fat was evaluated such that meaningful comparisons can be made between results obtained at different research and clinical sites. A T[subscript 1]-corrected variable flip angle (VFA) CSE-MRI was also proposed and rigorously evaluated for fat quantification in the hope of improving the precision of CSE-MRI fat quantification. Quantitative diffusion MRI using an intra-voxel incoherent motion (IVIM) model and T[subscript 2] mapping have shown promise for the evaluation of liver fibrosis. However, some additional development and validation is required for them to be recognized as QIBs. In this dissertation, a novel acetone-based diffusion phantom was proposed to provide a controlled environment for the development of quantitative diffusion MRI techniques. Further, to enable the quantification of T[subscript 2] from the water signal (parenchyma) and simultaneous quantification of R[subscript 2]*, a novel phase-based T[subscript 2] mapping technique was developed with its feasibility in the liver demonstrated.

Quantitative Magnetic Resonance Imaging and Spectroscopy Studies of Restless Legs Syndrome

Quantitative Magnetic Resonance Imaging and Spectroscopy Studies of Restless Legs Syndrome
Author: Byeong-Yeul Lee
Publsiher: Unknown
Total Pages: 264
Release: 2010
ISBN 10:
ISBN 13: OCLC:707489809
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Imaging and Spectroscopy Studies of Restless Legs Syndrome Book Review:

Quantitative Magnetic Resonance Imaging and Spectroscopy of Vertebral Bone Marrow Addressing Confounding Effects in the Measurement of Fat Fraction and Apparent Diffusion Coefficient

Quantitative Magnetic Resonance Imaging and Spectroscopy of Vertebral Bone Marrow  Addressing Confounding Effects in the Measurement of Fat Fraction and Apparent Diffusion Coefficient
Author: Michael Dieckmeyer
Publsiher: Unknown
Total Pages: 329
Release: 2019
ISBN 10:
ISBN 13: OCLC:1138380600
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Imaging and Spectroscopy of Vertebral Bone Marrow Addressing Confounding Effects in the Measurement of Fat Fraction and Apparent Diffusion Coefficient Book Review:

Imaging Technologies and Transdermal Delivery in Skin Disorders

Imaging Technologies and Transdermal Delivery in Skin Disorders
Author: Chenjie Xu,Xiaomeng Wang,Manojit Pramanik
Publsiher: John Wiley & Sons
Total Pages: 504
Release: 2020-01-28
ISBN 10: 3527344608
ISBN 13: 9783527344604
Language: EN, FR, DE, ES & NL

Imaging Technologies and Transdermal Delivery in Skin Disorders Book Review:

Provides the latest information on imaging technologies and transdermal delivery in skin disorders This important, timely book covers the latest understanding about today's major skin disorders, the development of imaging technologies for skin diagnosis, and the applications of micro/nano-technologies for the treatment of skin complications. It also places great emphasis on the critical role that interdisciplinary science occupies to achieve the requisite level of understanding of skin conditions and their management, which is essential to creating technologies that work. Imaging Technologies and Transdermal Delivery in Skin Disorders starts by outlining the structural characteristics of skin and skin appendages. It then discusses the key pathways involved in skin growth and development. Clinical presentations, pathophysiological mechanisms, and current clinical practices used to treat diseases affecting the skin are then introduced. Common preclinical models used for studying the mechanisms of diverse skin diseases, validation of novel therapeutic targets, and screening of new drugs to treat these diseases are also covered. The book examines the latest imaging technologies for understanding in vivo skin changes, as well as technologies such as high-resolution ultrasound imaging, quantitative Magnetic Resonance Imaging, high-resolution Optical Coherence Tomography, and emerging hybrid-imaging modalities. It concludes with chapters introducing emerging drug delivery technologies and potential future innovative developments. Presents up-to-date knowledge of the skin biology and pathologies Introduces advancements in the topic of imaging technology for tracing the drug delivery process, which is rarely systematically reported by other counterparts Covers the latest development in three inter-related directions of drug delivery, imaging, and skin disease intersect for skin research Provides an overview of the latest development of diagnostic and therapeutic technologies for skin diseases Imaging Technologies and Transdermal Delivery in Skin Disorders will be of great interest to analytical chemists, materials scientists, pharmaceutical chemists, clinical chemists, biotechnologists, bioengineers, cosmetics industry, and dermatologists.

Development and Application of Quantitative Magnetic Resonance Imaging Methods

Development and Application of Quantitative Magnetic Resonance Imaging Methods
Author: Melissa Schall
Publsiher: Unknown
Total Pages: 329
Release: 2019
ISBN 10:
ISBN 13: OCLC:1137041896
Language: EN, FR, DE, ES & NL

Development and Application of Quantitative Magnetic Resonance Imaging Methods Book Review:

Model based Reconstruction of Accelerated Quantitative Magnetic Resonance Imaging MRI

Model based Reconstruction of Accelerated Quantitative Magnetic Resonance Imaging  MRI
Author: Wajiha Bano
Publsiher: Unknown
Total Pages: 329
Release: 2019
ISBN 10:
ISBN 13: OCLC:1197752709
Language: EN, FR, DE, ES & NL

Model based Reconstruction of Accelerated Quantitative Magnetic Resonance Imaging MRI Book Review:

Magnetic Resonance Imaging

Magnetic Resonance Imaging
Author: Vadim Kuperman
Publsiher: Elsevier
Total Pages: 182
Release: 2000-03-15
ISBN 10: 0080535704
ISBN 13: 9780080535708
Language: EN, FR, DE, ES & NL

Magnetic Resonance Imaging Book Review:

This book is intended as a text/reference for students, researchers, and professors interested in physical and biomedical applications of Magnetic Resonance Imaging (MRI). Both the theoretical and practical aspects of MRI are emphasized. The book begins with a comprehensive discussion of the Nuclear Magnetic Resonance (NMR) phenomenon based on quantum mechanics and the classical theory of electromagnetism. The first three chapters of this book provide the foundation needed to understand the basic characteristics of MR images, e.g.,image contrast, spatial resolution, signal-to-noise ratio, common image artifacts. Then MRI applications are considered in the following five chapters. Both the theoretical and practical aspects of MRI are emphasized. The book ends with a discussion of instrumentation and the principles of signal detection in MRI. Clear progression from fundamental physical principles of NMR to MRI and its applications Extensive discussion of image acquisition and reconstruction of MRI Discussion of different mechanisms of MR image contrast Mathematical derivation of the signal-to-noise dependence on basic MR imaging parameters as well as field strength In-depth consideration of artifacts in MR images Comprehensive discussion of several techniques used for rapid MR imaging including rapid gradient-echo imaging, echo-planar imaging, fast spin-echo imaging and spiral imaging Qualitative discussion combined with mathematical description of MR techniques for imaging flow

Quantitative Magnetic Resonance Measurements of Porous Media

Quantitative Magnetic Resonance Measurements of Porous Media
Author: Sarah Vashaee
Publsiher: Unknown
Total Pages: 216
Release: 2015
ISBN 10:
ISBN 13: OCLC:958937285
Language: EN, FR, DE, ES & NL

Quantitative Magnetic Resonance Measurements of Porous Media Book Review:

"Magnetic resonance imaging (MRI) is a powerful tool for the non-destructive measurement of fluid content and fluid behavior in porous media. The essential factor in quantitative MRI of such systems is a reliable measure of fluid quantity in the pore space. Quantitative imaging is impaired in many cases by non-uniform B1 fields in the sample space. In this thesis a novel method is described for mapping B1 inhomogeneities based on measurement of the B1 field employing centric-scan pure phase encode MRI measurements. The resultant B1 map is employed to correct B1 related non-uniformities in MR profiles, which leads to quantitative density profiling. The new B1 mapping technique is also employed to investigate B1 induced MRI artifacts by analyzing image distortions surrounding two geometrically identical metallic strips of aluminum and lead. Quantitative density profiles may be acquired in porous media with a spatially selective adiabatic inversion pulse, which is immune to B1 field non-uniformities. The pulse is applied in the presence of a slice selective magnetic field gradient to restrict the field of view to a region of interest in which the B1 field is fairly uniform. This is advantageous in axial profiling of petroleum reservoir core samples and core plugs in which the sample of interest may be much longer than the natural field of view defined by the RF probe and region of constant magnetic field gradient. The adiabatic slice selection lends itself to a spatially selective T2 distribution measurement when a CPMG pulse sequence follows the slice selection. This method is an alternative to MRI-based techniques for T2 mapping in porous media when T2 is required to be measured at only a few positions along the sample, and a resolution of 5 mm is acceptable. The above T2 distribution mapping method is compared with spin-echo SPI (SESPI) and DANTE-Z CPMG methods in terms of spatial resolution, minimum observable T2 and sensitivity. Finally, multi-slice T2 measurement employing the longitudinal Hadamard encoding technique and adiabatic inversion pulses is discussed. The method has an inherent sensitivity advantage over corresponding slice-by-slice local T2 measurements."--Pages ii-iii.

The Parietal Lobe and Schizophrenia

The Parietal Lobe and Schizophrenia
Author: Robert Matthew Donnino
Publsiher: Unknown
Total Pages: 329
Release: 1995
ISBN 10:
ISBN 13: OCLC:84002479
Language: EN, FR, DE, ES & NL

The Parietal Lobe and Schizophrenia Book Review:

Magnetic Resonance Imaging

Magnetic Resonance Imaging
Author: Christakis Constantinides
Publsiher: CRC Press
Total Pages: 235
Release: 2016-02-03
ISBN 10: 1482217325
ISBN 13: 9781482217322
Language: EN, FR, DE, ES & NL

Magnetic Resonance Imaging Book Review:

Magnetic resonance imaging (MRI) is a rapidly developing field in basic applied science and clinical practice. Research efforts in this area have already been recognized with five Nobel prizes awarded to seven Nobel laureates in the past 70 years. Based on courses taught at The Johns Hopkins University, Magnetic Resonance Imaging: The Basics provid